tests: ready for first wave?

After #133 (closed) is implemented (hopefully at the end of the week), I'd like to start using tests (standalone) and collecting participants' data. I'd like to be sure the logs are complete and functional. Where can I see what's being logged from the tests?

• Participants' code or email (as mentioned in #133 (closed))
• Full participants' response for each item?
• Including response time for each timed item?

(Note: for now, I'm OK to check this data/logs via API or in the server db, no urgency to implement it in the interface, but I need to be sure that everything's correctly logged.)